ATE68927T1 - OPERATION MONITORING OF DIGITAL TRANSMISSION LINES. - Google Patents

OPERATION MONITORING OF DIGITAL TRANSMISSION LINES.

Info

Publication number
ATE68927T1
ATE68927T1 AT86105490T AT86105490T ATE68927T1 AT E68927 T1 ATE68927 T1 AT E68927T1 AT 86105490 T AT86105490 T AT 86105490T AT 86105490 T AT86105490 T AT 86105490T AT E68927 T1 ATE68927 T1 AT E68927T1
Authority
AT
Austria
Prior art keywords
alarm indication
regenerative repeater
regenerative
digital transmission
useful signal
Prior art date
Application number
AT86105490T
Other languages
German (de)
Inventor
Erhard Steiner
Friedemann Vollnhals
Original Assignee
Siemens Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of ATE68927T1 publication Critical patent/ATE68927T1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems
    • H04B17/407—Monitoring; Testing of relay systems without selective localization
    • H04B17/408—Monitoring; Testing of relay systems without selective localization using successive loop-backs

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Selective Calling Equipment (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Communication Control (AREA)

Abstract

For monitoring the operation of digital transmission links, a frequency-shifted telemetry signal, which consists of individual messages which are regenerated separately from the useful signal in each regenerative repeater and are supplemented by the message of this regenerative repeater, is also transmitted via the transmission device provided for the digital useful signal. To increase the number of transmittable alarm indication messages per regenerative repeater, it is proposed to provide in the telemetry units of the regenerative repeaters an additional sampling switch which circulates cyclically and connects one of the connections carrying alarm indication data with a collecting point for the data block to be sent out with each message cycle and during this process skips all connections which do not carry any alarm indication data at the sampling time.
AT86105490T 1985-04-22 1986-04-21 OPERATION MONITORING OF DIGITAL TRANSMISSION LINES. ATE68927T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3514511 1985-04-22
EP86105490A EP0199326B1 (en) 1985-04-22 1986-04-21 Operation monitoring of digital transmission links

Publications (1)

Publication Number Publication Date
ATE68927T1 true ATE68927T1 (en) 1991-11-15

Family

ID=6268822

Family Applications (1)

Application Number Title Priority Date Filing Date
AT86105490T ATE68927T1 (en) 1985-04-22 1986-04-21 OPERATION MONITORING OF DIGITAL TRANSMISSION LINES.

Country Status (4)

Country Link
EP (1) EP0199326B1 (en)
AT (1) ATE68927T1 (en)
AU (1) AU582847B2 (en)
DE (1) DE3682103D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6258744A (en) * 1985-09-09 1987-03-14 Fujitsu Ltd Polling system
DE3532336A1 (en) * 1985-09-11 1987-03-19 Siemens Ag MESSAGE TRANSMISSION SYSTEM WITH MONITORING IN ACCORDANCE WITH THE ISM LOCATION PROCEDURE
DE3726573A1 (en) * 1987-08-10 1989-02-23 Siemens Ag In-operation monitoring of communication transmission lines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO154368C (en) * 1980-07-22 1986-09-03 Siemens Ag PROCEDURE FOR MONITORING INTERMEDIATE GENERATORS AND INTERMEDIATE GENERATORS FOR IMPLEMENTATION OF THE PROCEDURE.
DE3232681A1 (en) * 1982-09-02 1984-03-08 Siemens AG, 1000 Berlin und 8000 München OPERATIONAL MONITORING OF DIGITAL TRANSMISSION ROUTES
DE3666763D1 (en) * 1985-05-31 1989-12-07 Siemens Ag Digital transmission link with series-connected telemetry channels

Also Published As

Publication number Publication date
EP0199326A2 (en) 1986-10-29
AU5642886A (en) 1986-10-30
EP0199326A3 (en) 1988-12-14
DE3682103D1 (en) 1991-11-28
EP0199326B1 (en) 1991-10-23
AU582847B2 (en) 1989-04-13

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee